{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "38769",
    "entityType": "User",
    "nonce": "0xc8dc5b8d2ae2e5b6a1e924a2b63b742df48b0acaefba8d9a2634ae3d990237cb",
    "signature": "0xad8e05fc08e1a04a3226c77abde81dd5a7d042bc7420ff8ca9e38cca384f85a70c6a82d324e34f71bbd26bfae75aba191c92298f72dbcf6c93e2f62c84db1f741c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}